Files
kotlin-fork/compiler/testData/diagnostics/tests/smartCasts/varnotnull/whileWithBreak.kt
T
Mikhail Glukhikh d5aed62410 Smart casts for local variables not captured in a closure and not changed in a loop, see #KT-3175.
isLocalVariable added. Assignment / initialization analysis.
Control whether a variable is changed in a loop at the beginning and at the end of the loop.
Control whether a variable is captured in a closure. #KT-3175  Fixed. #KT-2266  Fixed.
Tests for variable null safety and for variables is/as operations.
Loop / closure / variable property tests are included.
Old tests changed in accordance with KT-3175. In particular, all three of testSmartcastImpossible were fixed.
2015-04-16 20:10:58 +03:00

17 lines
521 B
Kotlin
Vendored

data class SomeObject(val n: SomeObject?) {
fun doSomething(): Boolean = true
fun next(): SomeObject? = n
}
fun list(start: SomeObject) {
var e: SomeObject? = start
while (e != null) {
// Smart cast due to the loop condition
if (!<!DEBUG_INFO_SMARTCAST!>e<!>.doSomething())
break
// We still have smart cast here despite of a break
e = <!DEBUG_INFO_SMARTCAST!>e<!>.next()
}
// e can be null because of next()
e<!UNSAFE_CALL!>.<!>doSomething()
}